전자저널 > 전자저널 > Survival and Growth of the Purplish Washington Clam, Saxidomus purpuratus Spat Sowed in bottom and intermediate culture

Survival and Growth of the Purplish Washington Clam, Saxidomus purpuratus Spat Sowed in bottom and intermediate culture

Young Guk Jin, Bong Se Oh, Choon Koo Jung, Tae Ik Kim and Min Woo Park

Southwest Sea Fisheries Research Institute, NFRDI, Yeosu 556-823, Korea

We studied possibility of the sowing culture at the bottom after intermediate culture as a method for raising the survival of the Purplish Washington clam, Saxidomus purpuratus. The pearl net (35 cm (W) × 35 cm (B) × 20 cm (H)) for S. prupuratus spat during the period of intermediate culture (hanging culture) from April to October in 2010. The pearl net (100 inds./net) was installed at two stations (Namhae and Pohang) being about 3-4 m in water depth. After hanging culture, S. prupuratus spat sowed in the bottom of the Gangjin Bay. The survivals (%) of intermediate culture of this species at Namhae station and Pohang station were 73% and 74%, respectively. Daily growth rate of mean shell length and mean weight in Namhae station were higher than those in Pohang station. After sowing at the bottom of the Gangjin Bay, its survival (%) showed 73.98% in January 2011. These results suggested the possibility of the intermediate culture as hanging culture for raising survival rate of S. prupuratus

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